CN102323172A - Shrink ratio test stand for testing performance of brake material for railway train - Google Patents
Shrink ratio test stand for testing performance of brake material for railway train Download PDFInfo
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Abstract
The present invention relates to shrink ratio test stand for testing performance of brake material for railway train.The important technological problems of all Friction Materials to the analysis of brake material performance, current standard provides whole railways, the performance detection of track train brake material must be 1：Tested on 1 stand, due to China current 1：1 track train inertia braking stand very little, normal product detection difficult.The present invention is provided with the new test stand of the track train brake material performance test of the systems such as drive mechanism, flying wheel collocation mechanism composition, is intimately associated braking engineering philosophy and uses sample geometric modelling subscale test mode and 1：1 bench test mode is consistent.The present invention can be obtained and 1：The corresponding result of 1 bench test data, is really reflected in experimental condition and the uniformity of its applying working condition condition in whole experiment process, easy to operate, it is multiple functional, it is high in technological content, the vacancy of domestic the sector is filled up, promotes the fast development in the sector brake material field.
Description
Technical field
The invention belongs to thermal shock skidding experimental technique field, and in particular to a kind of shrink ratio test stand for testing performance of brake material for railway train.
Background technology
The kind of track train brake friction material is very various, predominantly resin composite material, powdered metallurgical material of new material etc., track train braking with material require with higher energy density, high-fire resistance and high intensity come meet under the various working conditions such as high speed, high temperature, high specific pressure, large inertia, wind and rain, ice and snow keep braking ability stability and emergency brake brake, drag over long distances braking, moment brake, continuously brake in the state of, the unattenuated characteristic requirements of its braking ability.The energy ratio that brake friction material absorbs in the course of the work is larger, the huge kinetic energy that especially high-speed train braking is produced, and energy absorption is converted to heat energy and radiated into medium by palpus brake material,.If the braking ability of material is bad, the destruction of material can be caused, these destructions have burning to touch, transfer, heat cracks, thermal oxide and fire damage, heat fading, thermal expansion etc. make braking ability fail, and have a strong impact on the security of track train.Analysis to brake material performance, study and improve etc. be it is all be engaged in Friction Materials, the technical problem that the engineers and technicians of production face everyday.Provide whole railways according to existing relative national standards, the performance detection of track train brake material must be 1：Tested on 1 stand, each brake finger reference symbol world mark setting, so the unit for all producing track train brake material must periodically arrive defined department and be checked, due to China current 1：1 track train inertia braking stand（Hereinafter referred to as 1：1 stand）Very little, normal product detection difficult, it is impossible to meet the active demand supporting to new material research, production；1：1 stand involves great expense, tens million of one, members, the powerless input of general enterprises and institutions.To the testing stand of the braking ability of its brake material, outfit there is no, what the country was equipped with stand there are the China Academy of Railways Sciences 1 for possessing national discriminating test qualification；Beyond China Railway Longchang Materials Co., Ltd. 1, all normal quality controls of enterprise are only ensured by formula and technique, product can device weigh with by 1：1 bench test return on qualification is determined; do the quality index of brake block, brake lining well; solve brake material in heat fading, thermal expansion, heat cracks, have public hazards quality to topic and railroad track train braking brake shoe, the demand of the quick localization process of brake lining, without means of testing, all progress are all very slow.
The content of the invention
Experimental condition and the shrink ratio test stand for testing performance of brake material for railway train of the uniformity of applying working condition condition in experimentation can be kept it is an object of the invention to provide a kind of, the measuring technology of track train brake material performance test subscale test stand has been reached result of the test and 1：The comparative corresponding proportionate relationship of 1 rig test result.
The technical solution adopted in the present invention is：
Shrink ratio test stand for testing performance of brake material for railway train, includes main motor and main shaft, it is characterised in that：
It is connected with yielding coupling, inertia bearing, inertia disc component, inertia bearing, yielding coupling, jaw clutch, jiggering gear wheel, main shaft bearing, examination disk catcher, brake shoe fixture on the main shaft connected on described main motor in turn and brake lining fixture, the arm of force, arm of force bearing, arm of force seat move leading screw and arm of force seat moves gear wheel；
Clutch shifter bar and clutch shifter cylinder are provided with described jaw clutch；
Described jiggering gear wheel both sides are each provided with a clutch bearing；Turning motor gear and turning motor are provided with jiggering gear wheel；
Arm of force leading screw handwheel and arm of force leading screw are provided with the described arm of force；Described arm of force seat, which is moved, is provided with arm of force seat carrier wheel and arm of force seat displacement motor on gear wheel.
Some inertia discs run through by main shaft are provided with inertia disc component, inertia disc is fixed on main shaft by coupling flange and attachment bolt, and the outer rim of inertia disc is stuck in inertia disc bearing, and main shaft is fixed on bearing spider and bearing spider；
Inertia room is both provided with each inertia joint of main shaft.
The described arm of force is arranged on arm of force axle, arm of force leading screw is provided with the arm of force, arm of force two ends are provided with left sliding support and right sliding support.
Hub-type friction pair is provided with described arm of force leading screw, is enclosed within main shaft；
Hub-type friction pair is connected by brake shoe formula small sample, hub-type fixture head, depression bar, connection adjustor, cylinder and right sliding support with arm of force leading screw；
Depression bar guide pin bushing is cased with outside depression bar, depression bar guide pin bushing is stuck on right sliding support；
Shaft-mounted friction pair is provided with described arm of force leading screw, is enclosed within main shaft, spindle jacket has antithesis catcher；
Shaft-mounted friction pair is connected by shaft-mounted small sample, shaft-mounted fixture head and brake shoe fixture, left sliding support with arm of force leading screw；The other end of brake shoe fixture is provided with cylinder, and connection adjustor and activity catcher are provided between cylinder and brake shoe fixture；
Inlet suction port is provided with described cylinder；
Arm of force lower end sets force sensor；
Arm of force leading screw handwheel is provided with outside the two ends of arm of force leading screw, the arm of force.
The present invention has advantages below：
The present invention is provided with the new test stand of the track train brake material performance test of the systems such as drive mechanism, flying wheel collocation mechanism composition, is intimately associated braking engineering philosophy and uses sample geometric modelling subscale test mode and 1：1 bench test mode is consistent, and is obtained and 1：The corresponding result of 1 bench test data, is really reflected in experimental condition and the uniformity of its applying working condition condition in whole experiment process；It ensure that linear velocity is consistent with the linear velocity of track train brake block, brake lining real work, antithesis material is consistent with the material that track train brake block, brake lining are actually used, and on-position of the experimental enviroment condition with track train brake block, brake lining in brake operation is consistent；Meet the test of the kind brake material performance such as track train brake block, brake lining, meet the test chucking mechanism of simulation operating mode principle, meet different automobile types, do not weigh coaxially, the combined mechanism of the track train inertia configuration requirements of different speed per hours and facilitate accurate handling form；With test-bed overall structure reasonable in design, the steady testing under the big loading condiction such as large inertia, high speed, high pulling torque can have been carried by completing body；It is easy to operate, it is multiple functional, it is high in technological content, the vacancy of domestic the sector is filled up, promotes the fast development in the sector brake material field.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is inertia disc components structure chart.
Fig. 3 is being loaded and dynamometry modular construction right view for brake material test.
Fig. 4 is being loaded and dynamometry modular construction left view for brake material test.
In figure, 1- main motors, 2- yielding couplings, 3- inertia bearings, 4- inertia disc components, 5- yielding couplings, 6- jaw clutches, 7- turning motors, 8- turning motor gears, 9- jiggering gear wheels, 10- clutch bearings, 11- main shaft bearings, 12- brake shoe fixtures, 13- arm of force leading screw handwheels, the 14- arm of forces, 15- arm of force axles, 16- arm of forces seat carrier wheel, 17- arm of forces seat displacement motor, 18- arm of forces seat moves gear wheel, 19- arm of forces seat moves leading screw, 20- brake lining fixtures, 21- examination disk catchers, 22- clutch shifter cylinders, 23- clutch shifter bars, 24- arm of force leading screws, 25- bearing spiders, 26- inertia disc bearings, 27- inertia discs, 28- couples flange, 29- main shafts, 30- attachment bolts, 31- inertia room, 32- bearing spiders, 33- arm of force axles, cylinder（34）Connection adjustor（35）Bearing（36）Depression bar guide pin bushing（37）Depression bar（38）Hub-type fixture head（39）Brake shoe formula small sample（40）Hub-type friction pair（41）Inlet suction port（42）Force snesor（43）Shaft-mounted friction pair（44）Antithesis is taken over（45）Shaft-mounted fixture head（46）Shaft-mounted small sample（47）Activity catcher（48）Left sliding support（49）.
A-I- inertia discs A-I.
Embodiment
With reference to embodiment, the present invention will be described in detail.
With the development of high ferro cause, the braking such as the motor-car-bullet train-subway demand of new material-new product requires the paces accelerated to new material-new product research, but the research and development of material be unable to do without detection device, including international city's field boundary is all with the 1 of high cost：1 train bench test judges, is replaced without other, has virtually elongated research cycle significantly, it is impossible to meets our active demands to new material exploitation-production-application.The brake material such as aircraft-train-steamer-automobile-engineering machinery of our countries and product all survey testing machine to ensure using Properties of Friction Materials at this stage, the especially brake actuator and material of airplane wheel --- C/C carbon disks, exactly employ sample inertia simulation retardation test machine, airplane wheel brake disk oneself production is favorably accomplished, as the 4th in the world country for possessing carbon disk manufacturing capacity.According to this foundation, the present invention proposes a kind of brake material performance test subscale test platform to meet the inertia thermal shock wheels-locked testing requirement of track train, according to 1：The practical experience of 1 engine bench test technology and industry, completion includes brake block-brake lining performance and material properties test.
As shown in figure 1, being connected with yielding coupling 2, inertia bearing 3, inertia disc component 4, inertia bearing 3, yielding coupling 5, jaw clutch 6, jiggering gear wheel 9, main shaft bearing 11, examination disk catcher 21, brake shoe fixture 12 and brake lining fixture 20, the arm of force 14, arm of force bearing 15, arm of force seat on the main shaft 9 that the present invention is connected on main motor 1 in turn moves leading screw 19 and arm of force seat shifting gear wheel 18；Clutch shifter bar 23 and clutch shifter cylinder 22 are provided with jaw clutch 6；The described both sides of jiggering gear wheel 9 are each provided with a clutch bearing 10；Turning motor gear 8 and turning motor 7 are provided with jiggering gear wheel 9；Arm of force leading screw handwheel 13 and arm of force leading screw 24 are provided with the arm of force 14；Described arm of force seat, which is moved, is provided with arm of force seat carrier wheel 16 and arm of force seat displacement motor 17 on gear wheel 18.
As shown in Figure 2,10 inertia discs 27 run through by main shaft 29 are provided with inertia disc component 4, that is inertia disc A-I, inertia disc is fixed on main shaft 29 by coupling flange 28 and attachment bolt 30, the outer rim of inertia disc 27 is stuck in inertia disc bearing 26, and main shaft 29 is fixed on bearing spider 25 and bearing spider 32；Inertia room 31 is both provided with each inertia joint of main shaft 29.The system is the very important power source of track train brake material subscale test platform.The experiment energy of dispensing can be obtained needing by the rotating speed " ω " and inertia " I " that adjust main motor, its computing formula is
.Inertia joint in everywhere all devises inertia room 31 on main shaft 9, by taking inertia disc A as an example：Attachment bolt 30 can be removed by being not required to the inertia disc of configuration, and inertia disc 27 just can be retreated at inertia room 31, by the supporting and fixing of inertia disc bearing 26, just be not involved in experiment.And the inertia wheel that needs are configured need to only be coupled inertia disc 27 with coupling flange 28 with attachment bolt 30, connection flange 28 is connected together with main shaft 9 by bonded, can be rotated during experiment with main shaft 9 and be participated in testing.Total system inertia disc 9 altogether, total inertia：28.6kgm2, extreme difference is 0.2 kgm2 , it is that can provide ceiling capacity in current track train sample subscale test platform.
As shown in Figure 3 and Figure 4, the arm of force 14 is arranged on arm of force axle 33, and arm of force leading screw 24 is provided with the arm of force 14；Hub-type friction pair 41 is provided with arm of force leading screw 24 and shaft-mounted friction pair 44 is all enclosed within main shaft 9, spindle jacket has antithesis to take over 45；Hub-type friction pair 41 is connected by brake shoe formula small sample 40, hub-type fixture first 39, depression bar 38, connection adjustor 35 and cylinder 34 with arm of force leading screw 24；Shaft-mounted friction pair 44 is connected by shaft-mounted small sample 47, shaft-mounted fixture first 46 and brake shoe fixture 12, left sliding support 49 with arm of force leading screw 24；The other end of brake shoe fixture 12 is provided with cylinder 34, and connection adjustor 35 and activity catcher 48 are provided between cylinder 34 and brake shoe fixture 12；Depression bar guide pin bushing 37 is cased with outside depression bar 38, depression bar guide pin bushing 37 is stuck on right sliding support 36；Inlet suction port 42 is provided with cylinder 34；The lower end of the arm of force 14 sets force sensor 43；Arm of force leading screw handwheel 13 is provided with outside the two ends of arm of force leading screw 24, the arm of force 14.
The arm of force 14 is arranged on arm of force axle 15, its guarantee is set there are enough rigidity, in the right and left of the arm of force 14, left sliding support 49 and right sliding support 36 are set respectively, right position of the sliding support on slide rail can be adjusted by arm of force leading screw handwheel 13 and arm of force leading screw 24 respectively, plays a part of adjustment friction auxiliary air gap.
One cylinder 34 of Ф 80 is installed on right sliding support 36.Cylinder apical axis is coupled by connection adjustor 35 with depression bar 38.Depression bar 38 is positioned and can not swung by depression bar guide pin bushing 37, can only be reciprocating.The front end of depression bar 38 is coupled with active connecting mode with hub-type fixture first 39, first 39 front end of hub-type fixture is arc, with the geometry of analog orbit train brake shoe, brake shoe formula small sample 40 can be conveniently loaded in hub-type fixture first 39, with the formation friction pair of hub-type friction pair 41.
The kinetic energy calculated is passed to hub-type friction pair 41 by such as main motor 1 by main shaft 9, and the system is transmitted to force snesor 43 by the input pressure of inlet suction port 42, and by moment of friction by the arm of force 14, it is possible to complete a wheels-locked testing.
The experiment of disc type brake sheet material is carried out, above right-hand member mechanism can be disengaged by right-hand member handwheel 13.
Sample is completed using left sliding support 49 to be loaded such as Fig. 4, the position of left sliding support 49 can be adjusted by left end handwheel 13 and left end arm of force leading screw 24, and it is shaft-mounted friction pair 44 that hub-type friction pair 41 is changed first.To adapt to the experiment demand of high ferro and motor-car brake material, left sliding support 49 is installed in the left side of the arm of force 14, a set of brake lining fixture 20 is housed on support, the front end of fixture is shaft-mounted fixture first 46, shaft-mounted first 46 both sides of fixture respectively fill a piece of shaft-mounted small sample 47, the small sample simulates rail train brake pad geometry, and the gap between friction pair can be adjusted by connection adjustor 35.As the kinetic energy calculated is passed to shaft-mounted friction pair 44 by main motor 1 by main shaft 9, pressurizeed simultaneously to inlet suction port 42, friction sample will be transmitted to force snesor 43 by the kinetic energy of triboabsorption main shaft 9, and by moment of friction by the arm of force 14, just can complete a wheels-locked testing.
It is the determination of proportionality coefficient of the present invention below：
1st, the length velocity relation of track train motion is as follows：
The speed of mainshaft（rpm）：
Wherein：V-experiment speed（km/h）, R-radius of wheel（m）
Spindle angular velocity：
Wherein：N-the speed of mainshaft
Rub effective radius linear velocity：
Wherein：R-it is friction effective radius（m）
Inertia calculation formula：
Wherein：G-it is axle weight（kg）, R-radius of wheel（m）, N-friction plate number
2nd, COEFFICIENT K is compared in inertia contractingIDetermination：
①、1:The absorption work(of 1 test-bed friction material unit area is：
Wherein：I1、ω1、X1、S1Respectively 1:The rotary inertia of 1 testing stand, braking angular speed, rubbing surface number, areal of friction facing.
2., the absorption work(of subscale test platform friction material unit area is：
③、1:1 stand friction effective radius linear velocity
Wherein：
For 1:1 testing stand friction effective radius
4., subscale test platform friction effective radius linear velocityWherein：
For subscale test platform friction effective radius
5., according to the principle of similitude, absorption per unit area work(is consistent, and effective linear velocity that rubs is consistent,,
It can obtain： ,
Coefficient is compared in inertia contracting
Wherein：For friction radius contracting than coefficient,
For face number contracting than coefficient,
Compare coefficient for the contracting of friction material area.
3rd, COEFFICIENT K is compared in rotating speed contractingnDetermination
According to the principle of similitude, effective linear velocity that rubs is consistent,
It can obtain：
Coefficient is compared in rotating speed contracting
4th, frictional disk radius scale coefficient
Determination：
①、1:1 testing stand is by rubbing surface and frictional disk ratio：
2., subscale test platform is by rubbing surface and frictional disk ratio：
3., according to the principle of similitude, 1:1 testing stand and subscale test platform ratio are consistent,
, obtain：
5th, frictional disk thickness coefficient KDDetermination
It is the process of energy conversion in a braking procedure, it is assumed that the energy of conversion all absorbs than friction material and antithesis, and other wouldn't be considered.
①、1:1 testing stand brake disc volume is with friction material volume ratio：
2., subscale test platform brake disc volume and friction material volume ratio are：
3., according to the principle of similitude, contract than friction material thickness and 1:1 testing stand is consistent,
, physical examination, which is contracted, compares consistent,
,
5th, brake pressure Proportional coefficient KFDetermination
①、1:The braking pressure that 1 testing stand brake disc is carried：
Wherein：
For brake pressure,For brake disc area.
2., the braking pressure that subscale test platform brake disc is carried：
Wherein：
For brake pressure,For brake disc area.
3., according to the principle of similitude, braking pressure is equal,
, obtain：
6th, braking moment proportionality coefficientIt is determined that
①、1:1 stand one side area absorbs work(：
②、
Wherein：、
、、
、
Respectively the braking moment of subscale test platform, braking mean angular velocity, braking time, rubbing surface number, friction area.
3., according to the principle of similitude, unit area coefficient work(is consistent, and braking time is consistent,
,
, obtain：
It is the determination of contracting ratio table parameter below：
1st, it is as follows with reference to vehicle parameter：
CHR5 motor-car parameters are as follows：
1., axle weight 16T
2., wheel diameter 890mm
3., speed 350km/h
4., single-sided friction piece area 200
5., brake disc size φ 640 × 80 (45)
6., frictional disk effective radius 247mm
7., every axle brake(-holder) block number 4
8., friction plate fan ring width 122mm
2nd, set：Sample brake pad diameter of phi 40 × 2, area 2 × 12.5
, contract than friction radius 100mm.
1., determine that proportionality coefficient is as follows：
=25/200=1/8
2. 1, is calculated:Total inertia of 1 frictional disk of bench test 1 carrying：
3. contracting specific inertia and rotating speed, are calculated：
=792.1×1/25≈31.68(
)
4. thickness of the contracting than frictional disk, is calculated：
5. radius of the contracting than frictional disk, is calculated：
According to result of calculation, frictional disk radius can not meet frictional disk radius of the contracting than radius requirement, and according to modified result, contracting is revised as into 125mm than friction radius, recalculate friction disc thickness, and contracting is more constant than friction material volume ratio with contracting than frictional disk：
, obtain：
18.34mm
6. the determination of maximum moment, is braked：
If, 1:1 testing stand braking moment is to the maximum：30K（
）
Subscale test platform maximum braking moment：
=30×1/20=1.5K(
)
7., the determination of maximum brake pressure
If：1:1 experimental bench maximum brake pressure 100KN
3rd, the determination of contracting ratio table maximum machine parameter：
Maximum speed：5600rpm
Maximum inertia configuration：32
Test maximum moment：2000
4th, according to the principle of similitude, experiment material parameter is determined：
Frictional disk size：
mm
Friction material area：2500
Friction material specification
mm
5th, subscale test platform compression system parameter is determined：
If：Pneumatic Pressure is selected, cylinder bears maximum pressure for 1Mpa,
The diameter of cylinder：
Cylinder selection standard cylinder
6th, contracting ratio table motor power calculation：
If：Equipment from static to maximum speed, the whole inertia of carrying, it is necessary to time be 100s,
Power of motor：
Consider other factors：Selection of Motor 75KW, the two poles of the earth frequency control motor.
Claims (6)
1. shrink ratio test stand for testing performance of brake material for railway train, includes main motor（1）And main shaft（9）, it is characterised in that：
Described main motor（1）The main shaft of upper connection（9）On be connected with yielding coupling in turn（2）, inertia bearing（3）, inertia disc component（4）, inertia bearing（3）, yielding coupling（5）, jaw clutch（6）, jiggering gear wheel（9）, main shaft bearing（11）, examination disk catcher（21）, brake shoe fixture（12）With brake lining fixture（20）, the arm of force（14）, arm of force bearing（15）, arm of force seat move leading screw（19）Gear wheel is moved with arm of force seat（18）；
Described jaw clutch（6）On be provided with clutch shifter bar（23）With clutch shifter cylinder（22）；
Described jiggering gear wheel（9）Both sides are each provided with a clutch bearing（10）；Jiggering gear wheel（9）On be provided with turning motor gear（8）And turning motor（7）；
The described arm of force（14）On be provided with arm of force leading screw handwheel（13）With arm of force leading screw（24）；Described arm of force seat moves gear wheel（18）On be provided with the arm of force seat carrier wheel（16）With arm of force seat displacement motor（17）.
2. shrink ratio test stand for testing performance of brake material for railway train according to claim 1, it is characterised in that：
Inertia disc component（4）In be provided with by main shaft（29）Some inertia discs run through（27）, inertia disc is by coupling flange（28）And attachment bolt（30）It is fixed on main shaft（29）On, inertia disc（27）Outer rim be stuck in inertia disc bearing（26）In, main shaft（29）It is fixed on bearing spider（25）And bearing spider（32）On；
Main shaft（29）Each inertia joint at be both provided with inertia room（31）.
3. shrink ratio test stand for testing performance of brake material for railway train according to claim 2, it is characterised in that：
The described arm of force（14）Installed in arm of force axle（33）On, the arm of force（14）Inside it is provided with arm of force leading screw（24）, the arm of force（14）Two ends are provided with left sliding support（49）With right sliding support（36）.
4. shrink ratio test stand for testing performance of brake material for railway train according to claim 3, it is characterised in that：
Described arm of force leading screw（24）On be provided with hub-type friction pair（41）, it is enclosed within main shaft（9）On；
Hub-type friction pair（41）Pass through brake shoe formula small sample（40）, hub-type fixture head（39）, depression bar（38）, connection adjustor（35）, cylinder（34）With right sliding support（36）With arm of force leading screw（24）Connection；
Depression bar（38）It is cased with depression bar guide pin bushing outside（37）, depression bar guide pin bushing（37）It is stuck in right sliding support（36）On.
5. shrink ratio test stand for testing performance of brake material for railway train according to claim 3, it is characterised in that：
Described arm of force leading screw（24）On be provided with shaft-mounted friction pair（44）, it is enclosed within main shaft（9）On, spindle jacket has antithesis catcher（45）；
Shaft-mounted friction pair（44）Pass through shaft-mounted small sample（47）, shaft-mounted fixture head（46）And brake shoe fixture（12）, left sliding support（49）With arm of force leading screw（24）Connection；Brake shoe fixture（12）The other end be provided with cylinder（34）, cylinder（34）With brake shoe fixture（12）Between be provided with connection adjustor（35）With activity catcher（48）.
6. the shrink ratio test stand for testing performance of brake material for railway train according to claim 4 and 5, it is characterised in that：
Described cylinder（34）On be provided with inlet suction port（42）；
The arm of force（14）Lower end sets force sensor（43）；
Arm of force leading screw（24）Two ends, the arm of force（14）Outside is provided with arm of force leading screw handwheel（13）.
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| CN107014624A (en) * | 2017-06-15 | 2017-08-04 | 珠海格莱利摩擦材料有限公司 | One kind contracting is than friction material inertia bench |
| CN107421574A (en) * | 2017-07-18 | 2017-12-01 | 宁波佳明测控技术有限公司 | A kind of portable testing stand of CRH5 EMUs integrated sensor |
| CN107643478A (en) * | 2017-11-10 | 2018-01-30 | 广东电网有限责任公司电力科学研究院 | One kind draws Reatta scale model lightning test system |
| CN108362596A (en) * | 2018-02-01 | 2018-08-03 | 燕山大学 | Elevator brake friction material friction and wear behavior evaluation experimental machine |
| CN108593307A (en) * | 2017-12-29 | 2018-09-28 | 山东国晶新材料有限公司 | One kind 1:1 simulation operating mode inertia experimental stand and experimental method |
| CN109883674A (en) * | 2019-03-13 | 2019-06-14 | 中国矿业大学 | Km deep-well Winder Disk Brake brakes simulating test device and method |
| CN115087569A (en) * | 2020-06-16 | 2022-09-20 | 舍弗勒技术股份两合公司 | Vehicle brake system and vehicle |
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| CN107014624A (en) * | 2017-06-15 | 2017-08-04 | 珠海格莱利摩擦材料有限公司 | One kind contracting is than friction material inertia bench |
| CN107421574A (en) * | 2017-07-18 | 2017-12-01 | 宁波佳明测控技术有限公司 | A kind of portable testing stand of CRH5 EMUs integrated sensor |
| CN107643478A (en) * | 2017-11-10 | 2018-01-30 | 广东电网有限责任公司电力科学研究院 | One kind draws Reatta scale model lightning test system |
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| CN108593307A (en) * | 2017-12-29 | 2018-09-28 | 山东国晶新材料有限公司 | One kind 1:1 simulation operating mode inertia experimental stand and experimental method |
| CN108593307B (en) * | 2017-12-29 | 2020-10-09 | 山东国晶新材料有限公司 | 1:1 simulation working condition inertia experiment bench and experiment method |
| CN108362596A (en) * | 2018-02-01 | 2018-08-03 | 燕山大学 | Elevator brake friction material friction and wear behavior evaluation experimental machine |
| CN109883674A (en) * | 2019-03-13 | 2019-06-14 | 中国矿业大学 | Km deep-well Winder Disk Brake brakes simulating test device and method |
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